Auction.com - I want my $2500 deposit back now!!
My experience:
Q: Does Auction.com return your funds?
A: Yes - the same day for me.
Q: What if you decide not to bid?
A: Call there 1-800 number and they will have your cash (if you pay by Debit Card) back in your account in minutes. It was 15 minutes for me.
Q: What if you bid?
A: Call the 1-800 number and you will still get your cash back in your account on the same day (I used a Debit Card).
This is general information from my own experience while using the site. I hope this helps others.